pf2e.fyi
From Pathfinder Bestiary 2, which isn't enabled.

Invidiak

CREATURE 7
MEDIUMCHAOTICDEMONEVILFIENDINCORPOREALUNHOLY

For most demons, possessing a creature requires a ritual, magic item, or condition, but for invidiaks, who lack a body, possession is akin to donning a suit of clothing. Known also as shadow demons, invidiaks are formed from envious mortal souls.

Perception +15; darkvision
Languages Chthonian, Common; telepathy 100 feet
Skills Acrobatics +15, Deception +18, Religion +13, Society +15, Stealth +17
Str -5, Dex +4, Con +3, Int +2, Wis +2, Cha +5
Telepathy 100 feet (aura, magical)

A monster with telepathy can communicate mentally with any creatures within the listed radius, as long as they share a language. This doesn't give any special access to their thoughts, and communicates no more information than normal speech would.

AC 22; Fort +15, Ref +16, Will +13; +1 to all saves vs. magic
HP 90; Immunities disease, poison, precision; Weaknesses cold iron 5, holy 5; Resistances all damage 5 (except force, ghost touch, or vitality; double resistance vs. non-magical)
+1 to All Saves vs. Magic
Exorcism Vulnerability

If an invidiak attempts to possess a creature and the creature rolls a critical success on its saving throw to resist Possession, or if an invidiak's possession of a creature is ended prematurely, such as via a successful Dispel Magic, the invidiak takes 6d6 mental damage and cannot use possession for 24 hours.

Speed fly 30 feet
Melee Claw +13 (agile, finesse, magical, unarmed, unholy), Damage 2d8 cold plus 2d6 spirit
Divine Innate Spells DC 26, attack +16; 7th Possession (Range Touch); 5th Dimension Door, Shadow Blast; 4th Darkness, Dimension Door (At Will); 3rd Fear; Cantrips (4th) Telekinetic Projectile
Rituals 1st Abyssal Pact
Favored Host

Each invidiak has a particular type of creature they prefer possessing, chosen from the following list:

  • aberration
  • animal
  • beast
  • any humanoid (such as dwarf)

In most cases, the favored type of target is human. When an invidiak uses Possession against a favored host, the duration of possession increases to unlimited, and the effect lasts until dispelled or until the invidiak dismisses it.

Shadow Blend (divine, illusion)

The invidiak Strides up to twice their speed. If the invidiak ends their movement in an area of dim light, they become Hidden as long as they don't move and the lighting in the area they're in doesn't grow brighter than dim light.

Unbodied Possession

An invidiak leaves no body behind when using Possession.

Pathfinder Bestiary 2OGL